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Niels Bohr Unlocking the Atom By Niels Bohr & Albert Einstein

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Presentation on theme: "Niels Bohr Unlocking the Atom By Niels Bohr & Albert Einstein"— Presentation transcript:

1 Niels Bohr Unlocking the Atom By Niels Bohr & Albert Einstein
(Ronak Trivedi & Tim Jones)

2 Niels Henrik David Bohr
Outline of Presentation Scientist’s Life A biography of Bohr’s life. Includes when and where scientist was born/place of education. Scientific Achievements All of the scientific milestones Includes experiments, and his atomic model. The atomic structure that Bohr created. Bohr Model of Atomic Structure Bohr vs. Einstein: Debate A representation of a debate that Einstein and Bohr had. Contribution to Atomic Structure How the findings of Bohr advance the understanding of the atomic structure.

3 Niels Bohr’s Life Born on October 7, 1885 In Copenhagen, Denmark Father was a Professor of Physiology at Copenhagen University My father sparked my interest of physics in my childhood Home was filled with openness, and intelectuals I also attended Copenhagen University and I obtained my doctorate in Physics in 1911 Spent my final years in Copenhagen after WWII and spent the rest of my life advocating the peaceful use of Nuclear energy. “My interest in the study of physics was awakened while I was still in school, largely owing to the influence of my father.” Niels Bohr, 1922

4 Scientific Achievements
Bohr Model of Atomic Structure in 1913 Introduced the theory of electrons orbiting around atomic nucleus. The theory stated that electrons were contained in quantized energy states, when they drop from one state to another, or when they jump from one orbit to another, energy is emitted. It was already known that atoms emit radiation, but this theory stated how it was done. The outer orbits contain more electrons than the inner ones, the outer orbits determine the atoms chemical properties. This theory became essential to quantum theory, and was awarded the Nobel Prize in 1922. Experiments that I used were previous works by other scientists. Used Ernest Rutherford’s previous findings of an atom’s positively charged nucleus, surrounded by negatively charged electrons and added his own theory into it. Ernest Rutherford and his colleagues performed the Gold Foil Experiment, which proved the existence of the atomic nucleus. This important experiment was what I based my work off of as I furthered the model of the atomic structure.

5 Bohr Model of Atomic Structure
The larger shells could hold more electrons. Each shell could hold electrons where n represents the shell number.

6 Scientific Achievements
Other Accomplishments Theoretical description of periodic table in 1920 Theory of Atomic nucleus being a compound structure in 1936 Ideas of uranium fission in terms of the isotope 235 in 1939 Which lead to the project to make a nuclear fission bomb in 1943.

7 Bohr and Einstein Debates
A theory of the very large and the theory of the very small clashing. “Not often in life has a human being caused me such joy by his mere presence as you did.“ -Albert Einstein 1920, in a letter to Bohr after a spirited debate Niels Bohr Albert Einstein Quantum Theory: theory of the very small Theory of Relativity: theory of the very large. Critic of quantum theory "God does not play dice with the universe” "Einstein, stop telling God what to do!"

8 Contribution to Atomic Structure
Bohr pushes further the understanding of the atom. Later came my model in 1913. The larger shells could hold more electrons. Each shell could hold: electrons where n represents the shell number. This is Ernest Rutherford’s model of an atom which was made in 1911, the one I based my work off of. Who knows what’s next? Maybe we will find little tiny people within these electrons, working them, who knows, the universe is a crazy place. I wonder who created a better model of the atom. The theory stated that electrons were contained in quantized energy states, when they drop from one state to another, or when they jump from one orbit to another, energy is emitted. It was already known that atoms emit radiation, but this theory stated how it was done. The outer orbits of electrons determine the atom’s chemical properties.

9 Quiz Time! Oh Yeah! If you like, you can use this slide as a template for your own voting slides. You might use a slide like this if you feel your audience would benefit from the picture showing a text message on a phone.

10 Works Cited Crutcher, Todd. “Niels Henrik David Bohr.” Physics.eou.edu, n.d. Web. 31 Oct Jones, Andrew Zimmerman. “Niels Bohr- Biography of Niels Bohr.” Physics.about.com, n.d. Web. 31 Oct Blair, Mika. “Niels Henrik David Bohr.” CsuPonoma.edu, n.d. Web. 31 Oct “History of the Atom Part 2: from Thomson to Bohr.” Green-Planet-Solar-Energy.com, n.d. Web. 31 Oct


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